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Sangamon County
- Chatham, Illinois Route 4 Bridge (HIER SG-2000-1-A)
- Chatham, Illinois Route 4 Bridge (HIER SG-2000-1-B)
- Lanesville, Lanesville Bridge (HIER SG-2008-1)
- Pleasant Plains, Dr. F. C. Fink House, State Route 125 (HABS IL-269)
- Springfield, 1908 Springfield Race Riot (Special Resource Study, Transmittal Letters, News Release)
- Springfield, Camp Butler National Cemetery, 5063 Camp Butler Road (HALS IL-7)
- Springfield, Camp Butler National Cemetery, Lodge, 5063 Camp Butler Road (HALS IL-7-B)
- Springfield, Camp Butler National Cemetery, Rostrum, 5063 Camp Butler Road (HALS IL-7-C)
- Springfield, City Water, Light and Power Lakeside Facility (HIER SG-2012-1)
- Springfield, Coney Island Building (HIBS SG-2000-1)
- Springfield, Edwards place, 700 North 4th Street (covenant, EXPIRED)
- Springfield, George M. Brinkerhoff House, 1500 North 5th Street (covenant no. 1, EXPIRED) (covenant no. 2, EXPIRED)
- Springfield, Iles House (HIBS SG-1998-1)
- Springfield, Illinois HABS-Organization Chart of Central Illinois District (HABS IL-1206)
- Springfield, Illinois State Capitol Complex, Capitol, 401 South 2nd Street (HABS IL-1283-A)
- Springfield, Illinois State Capitol Complex, William G. Stratton Building, 401 South Spring Street (HABS IL-1283-B)
- Springfield, Illinois State Fairgrounds, Comfort Station No. 48 (HIBS SG-1999-3-A)
- Springfield, Illinois State Fairgrounds, Comfort Station No. 49 (HIBS SG-1999-3-B)
- Springfield, Illinois State Fairgrounds, Comfort Station No. 64 (HIBS SG-1999-3-C)
- Springfield, Illinois State Fairgrounds, Comfort Station No. 66 (HIBS SG-1999-3-D)
- Springfield, Illinois State Fairgrounds, Comfort Stations (Cover Document) (HIBS SG-1999-3)
- Springfield, Illinois State Fairgrounds, Show Horse Barns (HIBS SG-1994-1)
- Springfield, Illinois Supreme Court Building, 200 East Capitol Avenue (HABS IL-330)
- Springfield, Lincoln Home Site, Aitkin Barn, 519 South Eighth Street (alley) (HABS IL-1123-L)
- Springfield, Lincoln Home Site, Arnold House, 810 East Jackson Avenue (HABS IL-1123-A)
- Springfield, Lincoln Home Site, Beedle House, Eighth Street between Jackson Street & Capitol Avenue (HABS IL-1123-H)
- Springfield, Lincoln Home Site, Chronology Drawings, 1839-1986, Jackson & Eighth Streets (HABS IL-1123-K)
- Springfield, Lincoln Home Site, Corneau House, 426 South Eighth Street (covenant, EXPIRED)
- Springfield, Lincoln Home Site, Dean House, 419 South Eighth Street (HABS IL-1123-E)
- Springfield, Lincoln Home Site, Dubois House, 519 South Eighth Street (HABS IL-1123-C)
- Springfield, Lincoln Home Site, Lyon House, Eighth Street between Jackson Street & Capitol Avenue (HABS IL-1123-I)
- Springfield, Lincoln Home Site, Miller House, 511 South Eighth Street (HABS IL-1123-B)
- Springfield, Lincoln Home Site, Shutt House, Edwards & Eighth Streets (HABS IL-1123-F)
- Springfield, Lincoln Home Site, Site Plan, Eighth Street (HABS IL-1123)
- Springfield, Lincoln Home Site, South Eighth Street (houses), South Eighth Street (HABS IL-1123-J)
- Springfield, Lincoln Home Site, Sprigg House, 507 South Eighth Street (HABS IL-1123-D)
- Springfield, Lincoln Home Site, Stuve Carriage House, Seventh & Edwards Street (rear) (HABS IL-1123-G)
- Springfield, Oak Ridge Cemetery, Superintendent Office, 1440 Monument Avenue (HIBS SG-1999-2)
- Springfield, Old State House (HABS IL-224)
- Springfield, Spaulding Dam/Bridge (HIER SG-1991-1)
- Springfield, Stonegate Barn (HIBS SG-1999-1)
- Springfield, Strawbridge/Shepherd House (landmark nomination)
- Springfield, Susan Lawrence Dana House, 301 East Lawrence Avenue (HABS IL-1188)
- Springfield, Thematic Survey of Springfield's African-American Community and the Central East Neighborhood (survey)
- Springfield, YMCA, 701 South Fourth Street (HABS IL-1259)
- Springfield vicinity, Western Cartridge Smokeless Powder Plant (HIBS SG-1998-2)